Part-time controlled airspace is based on time. The entry for Meigs in the
A/FD was:

AIRSPACE: CLASS D svc 1200-0400Z other times CLASS G.

The June 10 A/FD has a listing for Meigs but only shows the lat/long. and the
freq for the Kankakee RCO. Meigs is not depicted on the L23 low alt chart
anymore, but there is an RCO shown at that location. Since Meigs doesn't exist
anymore the airspace is the same as the area directly surrounding it when it
was there